2010Final results
2010 election for Iowa's 5th District
U.S. House · Iowa
Steve King (R) won with 65.7% of the vote, defeating Matthew Campbell (D) by 33.4 points.
Steve KingRepublican · winner
65.7%128,363
Matthew CampbellDemocrat
32.4%63,160
Martin James MonroeOther party
1.9%3,622
195,239 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 2010
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Matthew CampbellSteve King
$277.6K
Raised by the campaign
$1M
$280.2K
Spent by the campaign
$1M
$4
Cash on hand
$181.1K
Campaign money: FEC, through Dec 31, 2010.
Source: FEC campaign filingsUpdated Dec 31, 2010